From 46839e09e71765e0a7cfe414a2d50f3652524d63 Mon Sep 17 00:00:00 2001
From: PipoCanaja <pipocanaja@gmail.com>
Date: Sat, 16 Mar 2019 18:06:09 +0100
Subject: [PATCH] Do not use $sensor[sensor_limit] if not available

---
 html/includes/graphs/sensor/humidity.inc.php    | 4 +++-
 html/includes/graphs/sensor/temperature.inc.php | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/html/includes/graphs/sensor/humidity.inc.php b/html/includes/graphs/sensor/humidity.inc.php
index f6781ff218..e953385f38 100644
--- a/html/includes/graphs/sensor/humidity.inc.php
+++ b/html/includes/graphs/sensor/humidity.inc.php
@@ -10,7 +10,9 @@ $rrd_options .= " COMMENT:'                                 Last   Max\\n'";
 $rrd_options .= " DEF:sensor=$rrd_filename:sensor:AVERAGE";
 $rrd_options .= " DEF:sensor_max=$rrd_filename:sensor:MAX";
 $rrd_options .= " DEF:sensor_min=$rrd_filename:sensor:MIN";
-$rrd_options .= ' CDEF:sensorwarm=sensor_max,'.$sensor['sensor_limit'].',GT,sensor,UNKN,IF';
+if (is_numeric($sensor['sensor_limit'])) {
+    $rrd_options .= ' CDEF:sensorwarm=sensor_max,'.$sensor['sensor_limit'].',GT,sensor,UNKN,IF';
+}
 $rrd_options .= ' CDEF:sensorcold=sensor_min,20,LT,sensor,UNKN,IF';
 $rrd_options .= ' AREA:sensor_max#c5c5c5';
 $rrd_options .= ' AREA:sensor_min#ffffffff';
diff --git a/html/includes/graphs/sensor/temperature.inc.php b/html/includes/graphs/sensor/temperature.inc.php
index 4f3ddac072..94008d76cf 100644
--- a/html/includes/graphs/sensor/temperature.inc.php
+++ b/html/includes/graphs/sensor/temperature.inc.php
@@ -9,7 +9,9 @@ $rrd_options .= " COMMENT:'                          Min     Last   Max\\n'";
 $rrd_options .= " DEF:sensor=$rrd_filename:sensor:AVERAGE";
 $rrd_options .= " DEF:sensor_max=$rrd_filename:sensor:MAX";
 $rrd_options .= " DEF:sensor_min=$rrd_filename:sensor:MIN";
-$rrd_options .= ' CDEF:sensorwarm=sensor_max,'.$sensor['sensor_limit'].',GT,sensor,UNKN,IF';
+if (is_numeric($sensor['sensor_limit'])) {
+    $rrd_options .= ' CDEF:sensorwarm=sensor_max,'.$sensor['sensor_limit'].',GT,sensor,UNKN,IF';
+}
 $rrd_options .= ' CDEF:sensorcold=sensor_min,20,LT,sensor,UNKN,IF';
 $rrd_options .= ' CDEF:sensor_diff=sensor_max,sensor_min,-';
 $rrd_options .= ' AREA:sensor_min';